EP 0323699 A2 19890712 - Process and apparatus for the semicontinuous extraction of nicotine from tobacco.
Title (en)
Process and apparatus for the semicontinuous extraction of nicotine from tobacco.
Title (de)
Verfahren und Vorrichtung zur halbkontinuierlichen Extraktion von Nikotin aus Tabak.
Title (fr)
Procédé et appareil pour l'extraction semi-continue de la nicotine du tabac.
Publication
Application
Priority
US 12276087 A 19871119
Abstract (en)
A process is provided for the improved removal of nicotine from tobacco. An essentially nicotine-free solvent in the supercritical or liquid state is fed into a first end (10) of an extraction flow system (10-14) containing tobacco and a nicotine-rich solvent is discharged from a second end (11) of the extraction flow system. Periodically a portion of extracted tobacco is discharged from the first end (10) of the extraction system while simultaneously a portion of an unextracted tobacco (12) is charged to the second end of the extraction system. Nicotine is then entrapped (15) or otherwise removed from the solvent and solvent is recycled through the extraction flow system.
IPC 1-7
IPC 8 full level
A24B 15/24 (2006.01); A24B 15/26 (2006.01); B01D 11/02 (2006.01)
CPC (source: EP US)
A24B 15/26 (2013.01 - EP US); B01D 11/0203 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI NL SE
DOCDB simple family (publication)
EP 0323699 A2 19890712; EP 0323699 A3 19900425; AU 2569988 A 19890525; AU 623346 B2 19920514; BR 8806063 A 19890808; FI 885371 A0 19881118; FI 885371 A 19890520; JP 2709400 B2 19980204; JP H01196285 A 19890808; US 5497792 A 19960312; ZA 888573 B 19890830
DOCDB simple family (application)
EP 88310843 A 19881117; AU 2569988 A 19881118; BR 8806063 A 19881118; FI 885371 A 19881118; JP 29345888 A 19881118; US 12276087 A 19871119; ZA 888573 A 19881116